Description: The Sundown Audio SAEv4-1000D is a simple, powerful upgrade for any car audio enthusiast seeking superior sound quality and reliability. This high-performance half-bridge class D amplifier ensures powerful, detailed output. The variable phase, lowpass and subsonic filters provide the control you need - for the sound you love. Featuring robust protection circuitry against thermal, voltage, speaker short, and DC-offset issues, along with power and protection indicators, this amplifier guarantees long-lasting durability, while the heavy aluminum heat sink enhances thermal control, preventing overheating during extended use. The included wired remote with clipping indicator provides real-time monitoring and output control! Features: 1,000 x 1 @ 1 ohms RMS 600 x 1 @ 2 ohms RMS 375 x 1 @ 4 ohms RMS Class D amplifier 12dB variable low pass filter: 40Hz - 180Hz 12dB subsonic filter: 10Hz – 40Hz Phase shift control 0-180 degrees Power, clipping & protection indicators included Heavy aluminum heat sink for improved thermal control Thermal, voltage, speaker short, and dc-offset protection circuitry Wired remote control with clipping indicator Specifications: Input Sensitivity 6V Max Dual MOS-FET PWM Power Supply Signal / Noise Ratio : 92DB Operation Voltage : DC 10.5V - 15.5V Power Input Recommended Fuse : 100 Amps Dimensions : 12.48” L x 6.3” W x 2.75” H Amplifier Type: Class D 1 Ohm RMS Power: 1,000 x 1 @ 1 ohms RMS 2 Ohm RMS Power: 600 x 1 @ 2 ohms RMS 4 Ohm RMS Power: 375 x 1 @ 4 ohms RMS Operation Voltage: DC 10.5V - 15.5V Power Input Recommended Fuse: 100Amps Signal / Noise Ratio: 92DB Variable 12dB Subsonic Filter: 10Hz – 40Hz Variable 12dB Low Pass Filters: 40Hz - 180Hz Dimensions: Length: 12.48" Width: 6.3" Height: 2.75"